<template>
    <div class="app-container">
        <!-- 顶部Header区域-->
        <mt-header fixed title="Vue项目">
			<span slot="left" @click="goBack" v-show="flag">
        		<mt-button icon="back">返回</mt-button>
      		</span>
		</mt-header>


        <!-- 中间router-view区域-->
		<transition>
			<router-view></router-view>
		</transition>


        <!-- 底部Tabber区域-->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-llb" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>

<script>
export default {
  data() {
    return {
      flag: false
    };
  },
  created() {
    this.flag = this.$route.path === "/home" ? false : true;
  },
  methods: {
    goBack() {
      // 点击后退
      this.$router.go(-1);
    }
  },
  watch: {
    "$route.path": function(newVal) {
      if (newVal === "/home") {
        this.flag = false;
      } else {
        this.flag = true;
      }
    }
  }
}
</script>

<style scoped>
	.mint-header{
		z-index: 99;
	}

    .app-container{
        padding-top: 40px;
		padding-bottom: 50px;
		overflow-x: hidden;
    }


	.v-enter{
		opacity: 0;
		transform: translateX(100%);
	}

	.v-leave-to{
		opacity: 0;
		transform: translateX(-100%);
		position: absolute;	
	}

	.v-enter-active,
	.v-leave-active{
		transition: all 0.5s ease;
	}


		/* 该类名，解决 tabbar 点击无法切换的问题 */
	.mui-bar-tab .mui-tab-item-llb.mui-active {
		color: #007aff;
	}

	.mui-bar-tab .mui-tab-item-llb {
		display: table-cell;
		overflow: hidden;
		width: 1%;
		height: 50px;
		text-align: center;
		vertical-align: middle;
		white-space: nowrap;
		text-overflow: ellipsis;
		color: #929292;
	}

	.mui-bar-tab .mui-tab-item-llb .mui-icon {
		top: 3px;
		width: 24px;
		height: 24px;
		padding-top: 0;
		padding-bottom: 0;
	}

	.mui-bar-tab .mui-tab-item-llb .mui-icon ~ .mui-tab-label {
		font-size: 11px;
		display: block;
		overflow: hidden;
		text-overflow: ellipsis;
	}
</style>